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Why concerns about tap water quality are getting harder to ignore
Home sampling and utility testing are drawing closer scrutiny as scientists say tap water can contain contaminants and treatment gaps.
Earlier this year, the Environmental Protection Agency added PFAS, microplastics, and pharmaceuticals to a draft drinking water watch list to evaluate potential contaminants that may occur in public water supplies.
Researchers can now detect smaller traces of chemicals and particles in water, prompting public agencies to examine substances that older regulations were not built to address.
The U.S. Geological Survey estimates at least 45% of U.S. tap water may contain PFAS, while researchers have reported microplastics in water and human tissues, with these "forever chemicals" persisting in the environment.
Although the EPA finalized limits on "forever chemicals" in 2024, public water systems have years to comply, meaning strict enforcement will not fully kick in until 2031 or later.
Residents concerned about water quality can take charge by testing home supplies, learning about certified filters, and following updates from trusted health organizations to gain control over their water quality.